desktop: Use egui-winit clipboard

[ColinKinloch]

The egui-winit clipboard implementation provides a nice interface to smithay-clipboard which correctly implements the core wayland selection protocol. It uses arboard as a fallback for other platforms.

It also provides a fake internal clipboard as a final fallback.

#15535

[torokati44]

What is the resolution of this? 🤔

However in testing it in a flatpak sandbox it still seems to require x11 (XWayland) to access the system clipboard.

[torokati44]

But: "Look at all those dropped dependencies from Cargo.lock! 🤩"

[ColinKinloch]

What is the resolution of this? 🤔

I was using Clipboard::new(None) which just falls back to arboard, to get it to use the wayland protocol it needs access to the wl_display. I was running on fumes at that point.

Look at all those dropped dependencies

It's a little odd, the egui version still uses arboard.

I considered trying to fix arboard but as far as I can see winit has plans for a clipboard interface and I think that's a better place for that code.

[torokati44]

I was using Clipboard::new(None) which just falls back to arboard, to get it to use the wayland protocol it needs access to the wl_display. I was running on fumes at that point.

Ah, I see. So the "needs X11/XWayland in Flatpack" thing is no longer true this way?

It's a little odd, the egui version still uses arboard.

Yeah, but that has default-features = false set, disablingimage-data support - which we actually don't need at the moment.

[ColinKinloch]

Correct, ruffle can access the clipboard under flatpak with x11 access revoked.
Here's a little script I've been using to test:

#!/usr/bin/env sh

RUST_PREFIX="/lib/sdk/rust-stable"
RUST_ENABLE="${RUST_PREFIX}/enable.sh"
LLVM_ENABLE="/usr/lib/sdk/llvm17/enable.sh"
JAVA_ENABLE="/usr/lib/sdk/openjdk/enable.sh"

flatpak run \
  --device=dri \
  --share=network \
  --socket=pulseaudio \
  --socket=wayland \
  --nosocket=x11 \
  --nosocket=fallback-x11 \
  --share=ipc \
  --command=bash \
  --filesystem="$(pwd)" \
  org.freedesktop.Sdk//23.08 \
  -c "source ${RUST_ENABLE} && source ${LLVM_ENABLE} && source ${JAVA_ENABLE} && cargo ${*}"

[torokati44]

Awesome - thank you so much!